顶浪规则波中的KCS船体阻力性能优化
Optimization of KCS resistance performance in regular head waves
楼沈韬 1张奕 1马宁 1史琪琪1
作者信息
- 1. 上海交通大学海洋工程国家重点实验室,上海 200240;上海交通大学船舶海洋与建筑工程学院,上海 200240;上海交通大学海洋装备研究院,上海 200240
- 折叠
摘要
对KCS船在顶浪规则波中的型线优化开展研究.采用径向基函数方法对船体型线进行变形,使用SHIPFLOW中的全非线性的时域边界元方法水动力性能求解器对阻力性能进行预报,利用拉丁超立方采样方法和Kriging近似模型以减少水动力性能计算,结合多岛遗传算法以船体在1.15倍船长的顶浪规则波的阻力为优化目标进行优化.计算结果表明优化后的船型相比于原船总阻力减少了 4.48％,波浪增阻系数减少了 18.08％.
Abstract
A study is conducted to optimize the KCS's hull design in regular head waves.The transformation of the hull lines is achieved using the radial basis function method.The hydrodynamic performance solver in SHIPFLOW,employing the fully nonlinear time-domain boundary element method,is utilized to predict the resistance.To reduce the computational resources required for hydrodynamic performance calculations,Latin hypercube sampling method and Kriging approxima-tion model are used.Furthermore,multi-island genetic algorithm was integrated to reduce the resistance in regular head waves with a wavelength equivalent to 1.15 times of the ship's length.The results of the calculations show a 4.48％reduc-tion in the total resistance of the optimized ship,along with an 18.08％decrease in the added resistance coefficient as com-pared to the original ship.
关键词
阻力优化/波浪增阻/KCS船型Key words
resistance optimization/added resistance/KCS引用本文复制引用
出版年
2024
NETL
NSTL
万方数据